51325552323243 has 12 divisors (see below), whose sum is σ = 80876627903448. Its totient is φ = 31106395347360.

The previous prime is 51325552323187. The next prime is 51325552323251. The reversal of 51325552323243 is 34232325552315.

51325552323243 is a `hidden beast` number, since 5 + 1 + 3 + 2 + 55 + 523 + 2 + 32 + 43 = 666.

51325552323243 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-51325552323243 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51325552323263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 259219961130 + ... + 259219961327.

It is an arithmetic number, because the mean of its divisors is an integer number (6739718991954).

Almost surely, 2^{51325552323243} is an apocalyptic number.

51325552323243 is a deficient number, since it is larger than the sum of its proper divisors (29551075580205).

51325552323243 is a wasteful number, since it uses less digits than its factorization.

51325552323243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 518439922474 (or 518439922471 counting only the distinct ones).

The product of its digits is 3240000, while the sum is 45.

Adding to 51325552323243 its reverse (34232325552315), we get a palindrome (85557877875558).

The spelling of 51325552323243 in words is "fifty-one trillion, three hundred twenty-five billion, five hundred fifty-two million, three hundred twenty-three thousand, two hundred forty-three".